Installation
17
Table 8 Liebert
®
PFH unit charge levels and coupling size
Model Numbers R-407C Charge Coupling Size
60 Hz 50 Hz lb-oz (kg) Liquid Suction
95°F (35°C) Standard Sound
PFH014A-_L7 —
8-6 (3.80) #6 #11PFH020A-_L7 —
PFH027A-_L7 —
PFH037A-_L7 PFH036A-_L7
13-5 (6.04) #6 #11
PFH042A-_L7 PFH041A-_L7
PFH067A-_L7 PFH066A-_L7 26-10 (12.08) #10 #12
PFH096A-_L7 PFH095A-_L7
3-ton Circuit 3-ton Circuit 22-9 (10.23) #6 #11
5-Ton Circuit 5-Ton Circuit 36-5 (16.47) #10 #12
105°F (41°C) High Ambient
PFH027A-_H7 — 13-5 (6.04) #6 #11
PFH037A-_H7 PFH036A-_H7
26-10 (12.08) #6 #11
PFH042A-_H7 PFH041A-_H7
PFH067A-_H7 PFH066A-_H7 51-11 (23.45) #10 #12
Quiet-Line
PFHZ27A-_L7 — 13-5 (6.04) #6 #11
PFHZ37A-_L7 PFHZ36A-_L7
26-10 (12.08) #6 #11
PFHZ42A-_L7 PFHZ41A-_L7
PFHZ67A-_L7 PFHZ66A-_L7 51-11 (23.45) #10 #12
Table 9 Recommended line sizes, OD Cu
Equiv.
ft. (m)
PFH_14A PFH_20A PFH_27A
PFH_36A
PFH_37A
3-ton circuit
of 8-ton model
PFH_42A
PFH_41A
PFH_67A
PFH_66A
5-ton circuit
of 8-ton model
Suction Liquid Suction Liquid Suction Liquid Suction Liquid Suction Liquid Suction Liquid
50 (15.2) 5/8" 3/8" 5/8" 3/8" 7/8" 3/8" 7/8" 1/2" 7/8" 1/2" 1-1/8" 1/2"
75 (22.9) 5/8" 3/8" 7/8" 3/8" 7/8" 3/8" 7/8" 1/2" 7/8" 1/2" 1-1/8" 5/8"
100 (30.5) 7/8" 3/8" 7/8" 3/8" 7/8" 1/2" 1-1/8"
2
1/2" 1-1/8" 1/2" 1-1/8" 5/8"
125 (38.1) 7/8" 3/8" 7/8" 1/2" 7/8" 1/2" 1-1/8"
2
1/2" 1-1/8" 1/2" 1-3/8" 5/8"
150 (45.7) 7/8" 3/8" 7/8" 1/2" 7/8" 1/2" 1-1/8"
2
1/2" 1-1/8" 5/8" 1-3/8" 5/8"
1. Suction and liquid line sizing based on < 3 psi pressure drop in each, minimum horizontal suction line velocity > 700FPM (3.6m/s).
2. Suction size should be reduced one pipe size for vertical riser sections to maintain suction line velocity > 1000FPM (5.1m/s) for proper oil
return.
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